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    Recent racist incidents against Black Americans have brought home to us that racism remains systemic in our society. As an inclusive organization that welcomes all people with an interest in birds, we are committed to speaking out against racism and bigotry. Black lives matter to MOS; as such, we condemn racism in all its forms.

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    Please plan on joining us next year, May 14 – 16, 2021 in Cumberland. We wish you well until then.

    Visit the MOS Convention Website
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    The original birding guide has been completely transformed and is now “Birder’s Guide to MD & DC”. More features and enhancements!

    Check it out!
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    Is your knowledge of birds limited to “brown ones, blue ones and red ones”? Or some variation thereof? Not to worry!

    Learn More小白加速器破解会员
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    Join YMOS, our group especially for young birders.

    Learn MoreJoin YMOS
  • Looking for birding spots in Maryland?

    We can help!

    Join MOSCheck out the Maryland Birding Guide
  • Support MBCP!

    MBCP partners with other environmental groups to promote projects that enhance bird conservation. Birds need your support!

    Check it out!
  • Conservation Starts With You

    Sign up for conservation alerts and take action.

    Take Action
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    Join MOSAbout MOS
  • Teachers and Nature Center Educators

    Looking for a fun, rewarding summer workshop? Check out our scholarships to Audubon’s Hog Island Sanctuary in Maine.

    Learn More



The Spring 2020 issue of The Maryland Yellowthroat is here!  Check it out today for the latest MOS information and events.


The Maryland Ornithological Society (MOS) is a nonprofit, statewide organization of people who are interested in birds and nature. It was founded in 1945 and incorporated in 1956 to promote the study and enjoyment of birds. MOS promotes knowledge about our natural resources, and fosters its appreciation and conservation. The Society also maintains a system of sanctuaries to encourage the conservation of birds and bird habitat, and to help record and publish observations of bird life.

Local chapters throughout the state offer field trips, bird counts, and conservation projects for members and guests. Lively and informative programs complement regular meetings where members and guest speakers share their knowledge and expertise. Take a look at our 快连加速器破解版 to find out more about MOS.





Click on the area where you live or work to find the nearest MOS chapter and membership information.



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  • Facilitating communication among youth birders throughout the State
  • Providing opportunities for young birders to get started in birding and to help develop their skills
  • Providing educators with resources and opportunities to implement programs
Learn More



Birding can be as simple as watching the pigeons fly by your window or pausing to marvel at the chirping sparrows in the trees.


For wildlife and nature photographers, birds provide fascinating but challenging subjects to capture with even a long lens.

Learn More


Fourteen Maryland birds are on the state’s endangered list, with habitat loss often the most likely cause. Another 60 birds or so are either threatened, in need of conservation, extirpated from Maryland, or considered rare. To highlight these species, educate the public and formulate responses to threats across all fauna DNR formulated the State Wildlife Action Plan.


Advocacy & Action

Drones Harass Nesting Bald Eagles

Nesting Bald Eagles have been harassed in recent weeks…

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On Saturday, April 28, the public is invited to help clean up…

Major Current Concerns

Red Knots plummet by 25% in a year in Tierra del Fuego

For a while, it looked like they might actually be in recovery.…

One in eight bird species threatened with extinction, global study finds

News via the Guardian: Report on the state of the world’s…

加速器破解版Support the Maryland Bird Conservation Partnership (MBCP). MOS partnered with Maryland Department of Natural Resources (DNR) to form MBCP. We’re committed to projects that enhance knowledge of birds and  conserve birds and habitat in our state. Please donate today to continue this important work! Thank you.

Donate Now
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